Check: GEN003440
HP-UX 11.31 STIG:
GEN003440
(in versions v1 r19 through v1 r13)
Title
"At" jobs must not set the umask to a value less restrictive than 077. (Cat II impact)
Discussion
The umask controls the default access mode assigned to newly created files. An umask of 077 limits new files to mode 700 or less permissive. Although umask is often represented as a 4-digit number, the first digit representing special access modes is typically ignored or required to be 0.
Check Content
Determine what at jobs exist on the system. Procedure: # ls /var/spool/cron/atjobs If there are no at jobs present, this is not applicable. Determine if any of the at jobs or any scripts referenced execute the umask command. Check for any umask setting more permissive than 077. # grep -n umask <at job or referenced script> If any at job or referenced script sets umask to a value more permissive than 077, this is a finding. NOTE: The at facility will set the execution environment umask to 022. A grep of the at file will normally yield a line in the file that may look like umask 2. When examining any at job command file, this should not be mistaken for a user defined umask (re-)setting.
Fix Text
Edit at jobs or referenced scripts to remove umask commands setting the umask value more permissive than 077.
Additional Identifiers
Rule ID: SV-34996r1_rule
Vulnerability ID: V-4366
Group Title: GEN003440
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000225 |
The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions. |
Controls
Number | Title |
---|---|
AC-6 |
Least Privilege |